L9954XP

门驱动器 Door actuator driver

The L9954 and are microcontroller driven multifunctional door actuator driver for automotive applications. Up to two DC motors and three grounded resistive loads can be driven with three half bridges and three highside drivers.

The integrated standard serial peripheral interface SPI controls all operation modes forward, reverse, brake and high impedance. All diagnostic informations are available via SPI.

**Key Features**

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Overload diagnostic for all outputs

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Open load diagnostic for all outputs

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Charge pump output for reverse polarity protection

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PWM control of all outputs

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Current monitor output for highside OUT1, OUT4, OUT5 and OUT6

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All outputs short circuit protected

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Three half bridges for 1.5A load Ron =800m

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Two highside drivers for 1.5A load Ron =800m

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One highside driver for 6A load Ron =100m

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Very low current consumption in standby mode IS < 6μA typ; Tj ≤ 85 °C

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All outputs over temperature protected

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Programmable softstart function to drive loads with higher inrush currents i.e. current >6A, >1.5A